JL is completely correct that PB has long sequences of wins, win streaks. I just had my simulation break out win streaks and display them. At 100 sessions at a time it's easy to see that long win streaks are very common. I just had 33 wins in a row on a 100 session test. That test produced a 6.7 to 1 hit rate. I also had two 25+ win streaks in a 100 session test that produced a 9 to 1 hit rate. It's not a verification or validation of PB but more it's a validation that PB can look like a winner in the short run but that it will always be a loser in the long run. 6,400 is not a large number sample.